Tuesday, October 27, 2020

Climate change: Study reveals diminishing size of migratory birds in North America

Featured

Covid-19 vaccine could be available by end of the year: Fauci

Before the end of this year, it will be possible to know if there is a vaccine against COVID-19...

Belarus: Opposition leader in quarantine after coming into contact with an infected

The leader of the Belarusian opposition, Svetlana Tikhanovskaya, announced that she is currently under quarantine after her contact with...

50 million Americans voted by mail in the presidential election so far

More than 50 million Americans cast their ballots in the US presidential election by mail 11 days before the...
Zain Zubair
Zain Zubair
Zain Zubair is a staff writer for World News Observer. He is studying ACCA in Pakistan. Besides Accountancy and writing pieces, he loves cooking and nature photography. Zain has attended various modern journalism workshops. Contact: [email protected]

Since 1978, researchers have collected tens of thousands of migratory birds that died after hitting buildings in Chicago during the spring and autumn seasons and conducted a study that documented a staggering decline in size.

A study published on Wednesday involving 70,716 migratory birds that died between 1978 and 2016 in a collision in Chicago, the third largest city in the United States, found volumes have been dwindling since, but the width of the wings has increased.

The findings suggest that warmer climate is shrinking the size of certain species of migratory birds in North America and possibly around the world, the researchers cite the Burjuman rule, which suggests that individuals within a breed become slimmer in warmer areas and larger in colder regions.

“Findings suggest that warmer climate is shrinking the size of migratory birds in North America and possibly around the world”

The study focused on 52 species, most of which are sparrowhawks, breeding in cold areas in North America and spending winter in locations in southern Chicago. The researchers measured and weighed a group that hit the windows of buildings and fell to the ground.

Over the four decades of study, diminishing sizes were observed in all 52 species. Average body mass fell 2.6 percent and leg length decreased 2.4 percent. But the width between the two wings has risen 1.3 percent, possibly to enable birds to travel the long migration with their smaller bodies.

“This means that climate change seems to change the size and shape of these species”, said Brian Weeks, a biologist at the University of Michigan School of Environment and Sustainability and lead researcher in the journal Ecology Letters.

“Everyone really agrees that the climate is getting warmer”, said Dave Willard, director of honorary collections at the Field Museum in Chicago, who worked on measurements of all migratory birds.

Read also: Emperor Penguin disappears significantly from Antarctic Halley bay

Zain Zubair
Zain Zubair
Zain Zubair is a staff writer for World News Observer. He is studying ACCA in Pakistan. Besides Accountancy and writing pieces, he loves cooking and nature photography. Zain has attended various modern journalism workshops. Contact: [email protected]
- Advertisement -

Latest News

Covid-19 vaccine could be available by end of the year: Fauci

Before the end of this year, it will be possible to know if there is a vaccine against COVID-19...

Belarus: Opposition leader in quarantine after coming into contact with an infected

The leader of the Belarusian opposition, Svetlana Tikhanovskaya, announced that she is currently under quarantine after her contact with the Slovenian Foreign Minister Anzi...

50 million Americans voted by mail in the presidential election so far

More than 50 million Americans cast their ballots in the US presidential election by mail 11 days before the start of the race, a...

Remains of ships sunk hundreds of years ago discovered in Utbury, Sweden

Archaeologists in Sweden have discovered the remains of small, sunken ships dating back 400 years ago, during excavations in central Gothenburg in the coastal...

New York authorities preparing for possible riots after the election

New York City Mayor Bill de Blasio announced that the major American city authorities are preparing for possible unrest and riots in the city...

Related News